We have a lot of luggage over the years tucked away in the attic that is no longer usable.
Not a single one of those is a tumi. They easily outlast many other bags by factors of three to five times as long.
I believe the 20% is system wide for some pieces, it's the same price at the Tumi website.
If you have a Tumi outlet near by you can check to see if they have it or not, but beware of the warantee, you save some bucks but don't always get the lifetime coverage. I've not seen that style at the outlets I've been to recently though.
Yes, it is a lot of money, but if you use it a lot, it will easily outlast several less expensive bags.